spring - Double value getting set to 0 -


here firerules() method within orderresponsevo object inserted in session calculate earnings based on totalorderprice.

private void firerules(productresponsevo orderresponsevo,orderdetailsvo orderdetailsvo{ orderresponsevo.setdiscounts(null); facthandle fact= vbdiscsession.insert(orderresponsevo); vbdiscsession.fireallrules(); calculatediscounts(orderresponsevo); orderdetailsvo.setearnings(orderresponsevo.getearnings()); orderdetailsvo.setinvoiceamount(orderresponsevo.getinvoice()); vbdiscsession.retract(fact); }

here .drl file 2 rules written calculate add discounts based on totalordervalue , default rule fired everytime print totalorderprice

        //created on: mar 21, 2014 package com.mit.rules.vb import com.mit.vb.admin.order.bean.productresponsevo import com.mit.vb.admin.order.bean.discountvo import com.mit.vb.admin.order.bean.orderresponsevo  //list import classes here. dialect "mvel"    //declare global variables here rule "discount" salience 100     no-loop true    when        $responsevo: productresponsevo(totalorderprice > 250)                 //conditions                             //actions                  $responsevo.adddiscount(new discountvo("test",$responsevo.totalorderprice*0.35));          end          rule "discount special"             salience 50                 no-loop true             //include attributes such "salience" here...             when                 $responsevo: productresponsevo(totalorderprice >= 500)                 //conditions                             $responsevo.adddiscount(new discountvo(" made ",$responsevo.totalorderprice*0.10));                 //actions         end          rule "print before every rule" salience 150         when                $responsevo: productresponsevo()                            //   system.out.println( " -------------- " + $cpsellerdetails.cpinfobean.name);                 system.out.println( " -------------- " + $responsevo.totalorderprice);         end

based on totalordervalue new discountvo added.

here adddiscount() method

public void adddiscount(discountvo discount) {         if(this.discounts ==null)             this.discounts = new arraylist<discountvo>();          discounts.add(discount);     }

and discountvo constructor set discountname , discountvalue calculated based on totalordervalue

public class discountvo implements serializable {     /**      *       */     private static final long serialversionuid = 3440977389992293711l;     private int orderid;     private string discountname;     private double discountvalue;     private boolean ispercent=false;     private double discountpercent;      public discountvo(string discountname,double discountvalue){         this.discountname= discountname;         this.discountvalue=discountvalue;     }

the problem here whenever discountvo added using adddiscount() in drl file constructor in discountvo setting 2nd argument 0 though actual calculation differs. have cross checked verify discountvalue.the calculation not being 0 set zero

i reproduced issue reported. mvel bug caused multiplication of int double , i'll try fix asap. note indeed using java dialect works expected. conversely, if reason need use mvel dialect, quickest workaround can suggest putting double first: in case doing 0.35*$responsevo.totalorderprice works expected.


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